Operative surgery, for students and practitioners . muscle, the bulbo-cavernosus; it arises from the middle tendinous point of theperineum, and, passing forward, covers the bulb of the urethra,which is the posterior enlarged portion of the corpus spongiosum,joining, with fibers from the muscle of the opposite side upon itsupper surface, in a strong aponeurosis. The most anterior fibers ofthe bulbo-cavernosus muscle are attached on either side to the cruspenis, some entirely encircling these bodies and joining upon theupper s^urface of the root of the penis, in such a way as to binddown the dor
Operative surgery, for students and practitioners . muscle, the bulbo-cavernosus; it arises from the middle tendinous point of theperineum, and, passing forward, covers the bulb of the urethra,which is the posterior enlarged portion of the corpus spongiosum,joining, with fibers from the muscle of the opposite side upon itsupper surface, in a strong aponeurosis. The most anterior fibers ofthe bulbo-cavernosus muscle are attached on either side to the cruspenis, some entirely encircling these bodies and joining upon theupper s^urface of the root of the penis, in such a way as to binddown the dorsal vessels of the penis, obstructing the return flow PERINEUM AND ISCHIORECTAL REGION. G85 through tlie vein. This muscle shows a median fibrous raplie. Uponeither side, arising fi-om the ascending ramus of the ischium, is theischio-cavernosus. Tlie llbeis of tliis muscle partly cover the cruspenis and are attached to its sheath. Tlie crus penis is the posteriorportion of the corpus cavernosum and is attached to the ramus ofthe ischium and Fig. 310.—The Perineum and Ischio-rectal Region. The superficial and deeplayers of the superficial perineal fascia have been removed. The space in frontof the transversus perinei (TP) corresponds to the perineum; that behind thetransversus perinei to the ischio-rectal region. The floor of the space (TL)corresponds to the anterior layer of the triangular ligament. BG, bulbo-cavern-osus muscle; C, tip of coccyx; CC, corpus cavernosum (crus penis); C8, corpusspongiosum (the posterior part of the corpus spongiosum is called the bulbof the urethra); G, edge of gluteus maximus muscle; IG, ischio-cavernosusmuscle; LA, levator ani muscle; R, ramus of the pubes and ischium; SA,sphincter ani; 8L, edge of great sacro-sciatic ligament; TI, tuberosity of theIschium; TL, superficial or anterior layer of the triangular ligament; TP, trans-versus perinei muscle. Forming the posterior border of this space on either side is thetransversus perinei mu
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Keywords: ., bookauthormcgrathj, bookcentury1900, bookdecade1910, bookyear1913
